Selvage-loop retainer



J H. PURSER SELVAGE LOOP RETAINER Dgc. 9, 24,

Filed May l5, 1925 2 Sheets-Sheet 1 fNr/ENTOR eselo/v H 27a/'ser BY/mwf/ 77M@Mc ATTORNEYS D'ec. 9, 1924 J. H. PURSE R SELVAGE LOOP RETAINERFiled May 15, 1923 2 Sheets-Sheet' 2 JNVENTOR, Josep/7 h. Parser.LINDSAY S.

HALL, Gi@ LOS ANELES, GiLUTWTA SELVAGE-LOQP REEANEB.

Application ned Mey 15,

s ne for' propon n. ter-tile bony of is fl o the tiling; yarn puliingthe th ds o tno Werpr .more cio.' "f against one another the edges thanvf" in rubbericing duce, for use the menuectur-e of ties, the duela etthe selvagge is too closely Woven to permit the rubber to ii'npregnatethe fabric. The result is that the selvege .remains uneiiected by therubber and must be out from the goods. This results in a. serious Westeof mets-rial. in weaving 'the fabric, the edge Warp yarns are crimpeddue 'to the pressure of the filling thereon and are under a strongtension. This causes n. Weel;- ening oi the fabric.. n

The r'primary object of 'this invention is to provide e. loop retainerwhich may be uttached 'to u power loom and will produce e loosely Wovenselvage, thereby increasing, its strength ani ermitting rubberizing. Areother object off this invention is to provide e device oi the cha-meterdescribed which will hold the i'iliing yarn et the beginning of theretuinniovement of the shuttle and until it has passed completeiythrough the slied.

These objects together with other objects and correspondingaccomplishments are obtained by ineens `et the embodiment of myinvention illustrated in the accompanying drawing, in which.:

Fig. lis u perspective view of-Lso much/ot` zi loom es is necessary toillustrate the mounting of my improved retainer thereon; Fig. 2 is anenlarged perspective View of my-ixnproved retainer, a. fragment oi theloomV being shown to illustrte its mounting,r thereon; Fig. 3 is a.front elevation of the retainer; Fig. l is e perspective view show-- ingthe tin of the Yingoiadisposed within the loop of the iiling in positionto hold the sume; Fig. 5 is e side view of u fragment of 1923. serie?,ne. 639,061.

the retainer showing in full lines the retrected or released position ofthe finger and in dotted lines the advanced or holding position; (3 isa. diagrammatic view showing u. number ci' 'the 'werp yarns end thecrimp formed et the sel'vuge by reason of the pull upon the illing inthe course of weaving (lucir with the ordinary selvagge.

i'teiierring more particularly to the draw- 'aud especially to Fig. l, aside frame of .ein is indicated by l0. Spanning the rch ll. The loombeam i. is Wound is indicated y #n being liessed therei'roni over ss itend reed 15, over the breast A. iid about the sii-nd roiis 17. Theshuttle bo.;` is indicate-.d by 1S. llounted upon t1 breast rail is stopl). The ley 2() supports the shuttle s in its travel. The usual templeis indicated. by 521. The structure just described is :i Well -znoivnplain loom und the parts just described are essentiel portions of ulilooms. As the present invention is not dependent upoi'i the per-Yticulur details ot any ot the moving parts other than those abovereferred to, the loom need not be further described.

The movement of the hzirness causes a shed to be formed through whichthe shuttle containing vthe filling is thrown, first toV one side andthen to the other. Each time that the shuttle returns, u tension uponthe outside Warp is produced equal to twice the tension upon the iillingWithin the body of the iebrie, the filling being looped about 'the endthreads-'i and uiled by the tension therein on. both sides. T e reedthen beets the filling into piece end thereby orimps the outside Warp esindicated in Fig. 6. M loop re teiner relieves the tension'upo-n lili?filling upon its return. l "l Pivot-ally mounted at 22 upon the stopblock 19 is a lever 23. Connected to post 2 upon the lever is e tensionspring 25. A post 26 mounted upon the block limits the movement'of thelever in the direction in which the spring tends to turn the lever.Secured to the lever upon the other Aside of the pivot point is en'iirin27 to which is pivotitlly 'connected en operating, arm 28 for moving thelever against the notion of the spring 25, This erin 'may bereciprocetted by :i cani or any other suitable mechanical mevement0 Thelever is provided at its ai nii i3. `The Warp is passed through sides ofthe lever.'

upper end vv'ith an elongated slot 29 through which extends abolt 30.The bolt 1s secured to the lever by means of 'nuts 3l on opposite A4wrist block 32 is loosely journalled upon the boltO and hasan extension33. Secured to the extensional is the finger 34. The finger is providedwith t an elongated slot 35 through Whi `h bolts'BG are passed so thatthe projection of the finger from the Wrist may be adjusted. There isenough clearance between the bolt/ and the Wrist bearing to permitrockingin a lateral direction'. The amount of rocking is limited by ayoke comprising a bracket 37, on which" is mounted an adjustable loop38. The filling yarn will pull the tip of the finger so that Whenthelatter extends therethrough,

the finger restsfagainst one side of the yoke as shown in Fig.3.The'spring 39 tends to pull thev finger in the opposite directionagainst the other side of the yoke. A supgort/for the filling yarncomprises a. bar 40 aving a. raised portion il so that the filling yarnmay be loopedA t-hereabout for a moment. The device operates in thefollowing gaged the stop pin 26. Spring 39 holds the finger against theouter side of the yoke. The tip of the finger isbelow the filling. The

picking-stick then throws the shuttle to the` oppositeside, the fillinglooping about the finger as shown in Fig. 4. The tension upon,

the filling causes it to slip ofiI the extension '141 and to engage thetip of the finger as finger close to the outside Warp yarn.

' The finger takes all of the tension of 'thel filling atthe outsideedge and'provides a' shown in Fig. 3. This causes the finger to be swungtoward the edge of the fabricfand against the inside of the yoke. Uponthe shuttle reaching the opposite side, theoperating arm 28 is raisedthereby removing the tip of the finger from the loop .formed by thefilling and the reed 'coming forward pushes the Warp outwardly againstthelilling. The opposite side of the loom is pro- 4videdl With a similarmotionl operating in valternation with the one j ust described. The

finger ispheld at the outside of its yoke, in order that when it isadvanced toward.l the Warp, it will not be'liableto enter between vtheyarn. However, the filling'ean pull' the small-amount of slack, upon thefinger beving removed, the reed pushing the vWarp against the filling.The result is that' a. loosev 'Woven selvage is formed, Due to thelooseness of the' Weave at theselvage, the

i ,siaoos outside'warp yarn requires av different length for a givenlength of the Woven fabric than tlfeinner warp yarn. For this reason,the

outside yarns are fed from spools 42 mounted upon the arch. In thepresent instance, three spools are shown, although 'a greater -or lesser'number maybe used depending upon the weightand texture-fof the fabricwhich is being Woven.

.Yhat I claim is: l. 'In a iooln having a shuttle, a loop re tainercomprising a.v finger disposed side of the warp and yieiding supportedagainst lateral movements, means to advance said finger to a' positionbackof the filling so that the ieturn of said shuttle will loop saidfilling about said finger and to Withdraw said finger at 'the end ofthe` return travel of said shuttle.

2. In a loom having a. shuttle, a. loop retainer `comprising a. fingerdisposed at the side of the. warp aud yielding supported at the againstlateral movement, means to advance said finger to a position back of thefilling so that the return of said shuttle* vill 'loop said fillingabout said finger, andmeans to turn travel of said shuttle.

In a loomhaving a shuttle, a loop 'retainer comprising a finger mountedto be advanced to and to beretraeted from thev Warp at the side thereof,said'fingerbeing mounted to have a lateral movement, 'means tending tohold said finger laterally away from saidivarp, means toadvancesaid finger to a position back of "the filling so that the return ofsaid shuttlewill loop said filllWithdraw said finger at the end of the re Y' u lil()ing about said finger and to Withdraw said finger at the end of the'return travel .of said` shuttle. I l

4; In a loom having a. shuttle, a-loop retainer comprising ar fingermounted to he advanced to and retracted from the Warp at the sidethereof, said finger beingvmounted tov have a lateral movement, meanstending to hold said finge-1' literally awa-y from said Warp, means toadvance said finger to a 'position back of the filling so that thereturn yof said shuttle will loop said filling' about said finger, andmeans to Withdraw said fine ger at the end of. the return travel of saidshuttle.'y

q l V 5. In a loom having a shuttle, a loop retainer comprising a.fingerfmounted lto be advanced to and retracted from the Warp at theside thereof` said fingerbei-ng mounted to have alateral movement,resilient ymeans from said Warp, 'means to advancesaid filiger to a.position back of the filling so that the return 'of said shuttle' willloop said filling about 'said .finger and towithdraw said vfinger at theend-of the return' travel of said shuttle. l

6. in a loom havinga shuttle, a loopfre 'f tending to hold said fingerlaterally away feiner comprising a finger mounted tobe advanced to andto be retracted from the warp at the side thereof", means to adjust theprojection of said finger, said finger being mounted to have a lateralmovement, resihent means tending to'hold said finger laterally away fromsaid wa. means to advance said nger to a position back of the filling sothat the return of said shuttle will loop said 'fillin about said fingerand to Withdraw said nger at the fend of the return travel of saidshuttle.

7. In a loom having a shuttle7 a loop retainer comprising a. fingermounted to. be advanced to and retracted from the Warp at the sidethereof, said finger being mounted to have a lateral movement, meanstending to holdsaid finger laterally away from said warp, an adjustableyoke embracing said fin ger to limit its lateral movement, means toadvance said finger to a position back of the filling so that the returnof said shuttle will loo said fillingabout said finger and lo withdrawsaid finger at the end of the ,return travel of said shuttle.

8, In a loom having a shuttle, a loop retainer comprising ay fingermounted to be advanced to and retracted from the Warp at the sidethereof, means to adjust the projection of said finger, said fingerbeing mounted to have a lateral movement, resilient means tending tohold said finger later; allyv away 'from said warp, an adjustable yokeembracing said finger to limit its lati eral movement, means to advancesaid finger to a position back of the filling so that thc return of saidshuttle will loop said filling about said finger and to withdraw Saidfinger at the 0nd of tlul return travel of said shuttle.

In witness that I claim the foregoing I have hereunto subscribed my namethis 8th day of May. 1923.

JOSEPH H. 'PURSER

